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Finding the Fourth Proportional to 643,052.48, 963,805 and 237,921.68

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Solution

The fourth proportional to 643,052.48, 963,805 and 237,921.68 is: 356,596.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,052.48 : 963,805 = 237,921.68 : x
  2. Step 2: Convert to fraction form
    643,052.48/963,805 = 237,921.68/x
  3. Step 3: Cross multiply
    643,052.48x = 963,805 × 237,921.68
  4. Step 4: Simplify right side
    643,052.48x = 229,310,104,792.40
  5. Step 5: Solve for x
    x = 229,310,104,792.40/643,052.48
  6. Step 6: Final answer
    x = 356,596.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.